2to3: Use absolute imports.

The new import `absolute_import` is added the `from __future__ import`
statement and The 2to3 `import` fixer is run to make the imports
compatible. There are several things that need to be dealt with to make
this work.

1) Files meant to be run as scripts run in a different environment than
files imported as part of a package, and so changes to those files need
to be skipped. The affected script files are:

    * all setup.py files
    * numpy/core/code_generators/generate_umath.py
    * numpy/core/code_generators/generate_numpy_api.py
    * numpy/core/code_generators/generate_ufunc_api.py

2) Some imported modules are not available as they are created during
the build process and consequently 2to3 is unable to handle them
correctly. Files that import those modules need a bit of extra work.
The affected files are:

    * core/__init__.py,
    * core/numeric.py,
    * core/_internal.py,
    * core/arrayprint.py,
    * core/fromnumeric.py,
    * numpy/__init__.py,
    * lib/npyio.py,
    * lib/function_base.py,
    * fft/fftpack.py,
    * random/__init__.py

Closes #3172

1 files changed, 17 insertions, 17 deletions

diff --git a/numpy/lib/__init__.py b/numpy/lib/__init__.py
index 5679a2dc8..37c06c014 100644
--- a/numpy/lib/__init__.py
+++ b/numpy/lib/__init__.py
@@ -1,26 +1,26 @@
-from __future__ import division
+from __future__ import division, absolute_import
 
-from info import __doc__
+from .info import __doc__
 from numpy.version import version as __version__
 
-from type_check import *
-from index_tricks import *
-from function_base import *
-from shape_base import *
-from stride_tricks import *
-from twodim_base import *
-from ufunclike import *
+from .type_check import *
+from .index_tricks import *
+from .function_base import *
+from .shape_base import *
+from .stride_tricks import *
+from .twodim_base import *
+from .ufunclike import *
 
-import scimath as emath
-from polynomial import *
+from . import scimath as emath
+from .polynomial import *
 #import convertcode
-from utils import *
-from arraysetops import *
-from npyio import *
-from financial import *
+from .utils import *
+from .arraysetops import *
+from .npyio import *
+from .financial import *
 import math
-from arrayterator import *
-from arraypad import *
+from .arrayterator import *
+from .arraypad import *
 
 __all__ = ['emath','math']
 __all__ += type_check.__all__